original auto?

[HD-J78]

So, I am trying to figure out if my transmission is still original or not. According to build date it should have a 47re. It's got about 188,000mi. I bought it with 184,000mi this spring from a co-worker. He did not do anything with it when he bought it but change fluid and I think tighten bands? He does not know from previous owner whether it got rebuilt or not. So,is there any way to know if it is still the original without taking it apart? It kind of hits hard when you shift from neutral to drive, don't know if this is like the original or if this would indicate that it has had been worked on in it's past.
Thanks.

 

[p-Bar]

If it's not an HO it's supposed to be a 47, There are major components inside that will show which transmission you have . Any knowledgeable transmission guy can tell you once it's apart.

 

[Prairie Dog]

Rebuild shops will often put their sticker on the pan. Other than that I have no idea how you would tell.

 

[Prairie Dog]

They did put some 48re's in standard output trucks in 03 as the builds were switched over and inventories of the 47's were exhausted.

 

[jfluffy2]

Look for your truck equipment identification sheet, mind was inside the glove box, it will list the code number for you transmission. mind is a 48RE the code for it is DG8

 

[BlackBullit]

They did put some 48re's in standard output trucks in 03 as the builds were switched over and inventories of the 47's were exhausted.

Mine is one of those that had the standard engine with the 48re.